Concrete repairing material for semirigid base of high-grade asphalt road with heavy traffic was prepared by use of rapid-setting and rapid-hardening surphoaluminate cement and special additives.

• 采用快凝快硬硫铝酸盐水泥和特种添加剂研制出沥青路面半刚性基层混凝土修复材料。